US2463016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical compensator
Assignee: Revere Camera Co
•
Filing: 1945-03-19
•
Granted: 1949-03-01
•
Expires: 1965-03-19
Abstract
No abstract record available.
Inventors
- 👤 Briskin Jack
- 👤 Joseph A Mankawich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:26
CPC Classifications
G; G03; G03B; G03B41/00; G03B41/02; G03B41/04; G03B41/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US71309A
Cited
US1765904A
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US1264374A
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US1818410A
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US2070033A
Cited
US2143145A
Cited
US2288079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |